Analysis

  • max time kernel
    140s
  • max time network
    147s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20231215-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
  • submitted
    10-04-2024 13:35

General

  • Target

    b2f5edef0e599005e205443b20f6ffd9804681b260eec52fa2f7533622f46a6c.exe

  • Size

    719KB

  • MD5

    304d1ac0296fedec694a097480b341d9

  • SHA1

    fb60d4ab152acf71847dbbd36c75b8032c5da303

  • SHA256

    b2f5edef0e599005e205443b20f6ffd9804681b260eec52fa2f7533622f46a6c

  • SHA512

    ab0e848d35e9aad5191cc866738f7e4bb14195c8aea0a110a587e587f74cf3afd830d0f0b32b088d41d4ea1a14a2865514fccb46a1478560144062e2870624f1

  • SSDEEP

    12288:EzUn4szOR3e1QV5G+s9vQBe76QiPY2xJZhae4c8Bszyp0CA6WexU:EAn42+3eyV5gN/76QJattJpGp0CA6W6U

Malware Config

Signatures

  • OutSteel

    OutSteel is a file uploader and document stealer written in AutoIT.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Enumerates connected drives 3 TTPs 23 IoCs

    Attempts to read the root path of hard drives other than the default C: drive.

  • AutoIT Executable 10 IoCs

    AutoIT scripts compiled to PE executables.

  • Suspicious use of WriteProcessMemory 51 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\b2f5edef0e599005e205443b20f6ffd9804681b260eec52fa2f7533622f46a6c.exe
    "C:\Users\Admin\AppData\Local\Temp\b2f5edef0e599005e205443b20f6ffd9804681b260eec52fa2f7533622f46a6c.exe"
    1⤵
    • Enumerates connected drives
    • Suspicious use of WriteProcessMemory
    PID:2312
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.doc" /S /B /A
      2⤵
        PID:3864
      • C:\Windows\SysWOW64\cmd.exe
        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pdf" /S /B /A
        2⤵
          PID:2300
        • C:\Windows\SysWOW64\cmd.exe
          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppt" /S /B /A
          2⤵
            PID:1584
          • C:\Windows\SysWOW64\cmd.exe
            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
            2⤵
              PID:448
            • C:\Windows\SysWOW64\cmd.exe
              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.xl" /S /B /A
              2⤵
                PID:4488
              • C:\Windows\SysWOW64\cmd.exe
                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.csv" /S /B /A
                2⤵
                  PID:3220
                • C:\Windows\SysWOW64\cmd.exe
                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rtf" /S /B /A
                  2⤵
                    PID:232
                  • C:\Windows\SysWOW64\cmd.exe
                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.dot" /S /B /A
                    2⤵
                      PID:804
                    • C:\Windows\SysWOW64\cmd.exe
                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.mdb" /S /B /A
                      2⤵
                        PID:3076
                      • C:\Windows\SysWOW64\cmd.exe
                        C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.accdb" /S /B /A
                        2⤵
                          PID:4040
                        • C:\Windows\SysWOW64\cmd.exe
                          C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pot" /S /B /A
                          2⤵
                            PID:5084
                          • C:\Windows\SysWOW64\cmd.exe
                            C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.pps" /S /B /A
                            2⤵
                              PID:3308
                            • C:\Windows\SysWOW64\cmd.exe
                              C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.ppa" /S /B /A
                              2⤵
                                PID:3176
                              • C:\Windows\SysWOW64\cmd.exe
                                C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.rar" /S /B /A
                                2⤵
                                  PID:4196
                                • C:\Windows\SysWOW64\cmd.exe
                                  C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.zip" /S /B /A
                                  2⤵
                                    PID:916
                                  • C:\Windows\SysWOW64\cmd.exe
                                    C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.tar" /S /B /A
                                    2⤵
                                      PID:4780
                                    • C:\Windows\SysWOW64\cmd.exe
                                      C:\Windows\system32\cmd.exe /U /C DIR "\Users\Admin\*.7z" /S /B /A
                                      2⤵
                                        PID:2440

                                    Network

                                    MITRE ATT&CK Enterprise v15

                                    Replay Monitor

                                    Loading Replay Monitor...

                                    Downloads

                                    • memory/2312-1-0x00000000008F0000-0x00000000009F0000-memory.dmp

                                      Filesize

                                      1024KB

                                    • memory/2312-2-0x0000000002640000-0x000000000271D000-memory.dmp

                                      Filesize

                                      884KB

                                    • memory/2312-3-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-4-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-6-0x00000000008F0000-0x00000000009F0000-memory.dmp

                                      Filesize

                                      1024KB

                                    • memory/2312-7-0x0000000002640000-0x000000000271D000-memory.dmp

                                      Filesize

                                      884KB

                                    • memory/2312-8-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-10-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-12-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-14-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-16-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB

                                    • memory/2312-19-0x0000000000400000-0x00000000008AF000-memory.dmp

                                      Filesize

                                      4.7MB